Splice bar for rail joints



April 16, 1929. E. c. ZIMMERMAN I 09,551

INVENTOR Zw/ 'TORNEY Patented A r. 16, 1929.

UNITED-"STATES PATENT'OFFICEQ.

EMIL CARI.- ZIMMERMAMOF new YORK, N. 2., Assfenon'ro Q a 1 i Y yonx, N. Y., A CORPORATION or MAINE.

.SPLI CE BAR FOR RA'IL JOINTS; i I

Application filed December 9, 1927. Se1"1'al 1 T0. 238,757.

This invention relatesto imprw'ein'ents in splice bars for rail joints and consistsin a admits of an improved and more effective distribution of the metal to obtainmaterially added strength and stiffness ofthe bar structure for a given cross sectional area and Weight of metal. I l The present invention primarily has in View the production of a rail joint bar which 'may be economically produced by standard rolling practice, including structural modification which permlts'ofa substant1al lightening of the section wh le possessing a more effective distribution of the metal to allow of a saving in cross sectional area without matenally diminishlng or reduclng the stiffness'and strength of the resulting bar.

. In the improved modification of the, bar

structure the features of the presentinventi'on are further preferably embodied so as to preserve the standard bearing surfacesyfor fishing engagement with the under slde of the rail head and with the rail base flange 1 and j further toipre serve the outer vertical plane surface of the web portion to be properly engaged by the bolt heads or nuts of the usual fastening devices. I To this end my, improved splice bars are termine a substantial cross-section or thickness'of the membersthereoflwhile employing a minimum cross sectional area and weight of metal therefor. a,

' In further accordance withthe present invention wheret-he improved rib and groove formation is applied on opposite sides of. a

portion of aimember of the bar, they are j arranged whereby a rib will be opposite to a corresponding. groove'so as to avoid-undue reduction of the section. The PIOVlSlOIl. of

the enlarged rib and curved surface upon the bar members, as herein'contemplated, allows of obtaining a materially improved bar structure with, respect to a-jmore effective distribution of the metal which may be economically produced in the rolling operation without offering any particular or difficult problem as to flow of metal and excessive deformation and as will be further apprecirail joint;

its production. novel structural formation of the bar which The described and otherfeatures andadvantages ofmy improved spliced bar structure-will bemore readily understood by ref,- erence to the accompanying, drawings Wherein l ke reference numeralsare applied to the corresponding parts in the several views.

In the dra'wings v ,7 j Fig. 1 1s a PGISPGClLlVG', V ew showing my lmprove'd splice bar structure employed in a n. Fig. 2 is a View thereof'in vertical, cross section. i Fig. 3 is a cross-sectional view of amodifled form. V ii In the approved and practical .embodi-j ment of the features of'my invention as here- ,in shown, the splice bar-comprises the usual vweb po'rtion 1, head portion 2 and base flan portion 3, conforming in generalto the standard angle bar structure provided with the usual inclined head fishing surface4 engagingthe under side of the railhea'd 5f and the inclined base fishing surface 6 engaging the upper surface of the rail portion 7.

Inaccord ance ,with I my present invention,

,the bar is modifiedin its structural form by the provision of longitudinally extending surface'ribs 8 and grooves"9, of suitable size to effect a substantially improved dlStllblb tion of the metal so as to obtain high values in stiffening and strengtheningof the bar wall with a minimum metal requirement. Thefribs and grooves may desirably be of reverse curvaturein cross. sectional. contour, as -illustrated,..an'd offisubstantially corrcspending size. Infurther accordance with the preferred form of my invention, the modified rib and groove formation of the bar may be embodied so as to occu'rupon the major surfaces of the bar other the bearing surfacesthereof. Inaccordance therewith as here illustrated, the rib. and groove deformations are incorporated with the outer nonbearing surface of the head portion 2, the inwardly dlrected surfaceof the Web-porti on, theupper surface of the splicebar flange the conventional form having plane and unaltered surfaces. Aswill be noted, the are COMPANY, or NEW ate'd, avoids the necessity of geared rolls in and the undersurface of the flangemember. projecting beyond the rail. baseL The fish ing surfaces of the angle bar and the verti cal outer surface of the web portion are of' rangement of the ribs and grooves, or enlarged corrugation, of the bar flange portion at its outer end is such that the ribs of one surface are opposite to the grooves of the other surface, so as to produce a substantial uniform thickness at this portion. 7

In the manufacture of a joint bar embodying the improved features of the present invention, the simple alteration of the surface form may be readily effected in the rolling operation, from which it results that the bar is susceptible of economical productionand results in a bar affording material improvements as to economical distribution of metal employed.

As will be readily understood, the primary feature of the invention is necessarily susceptible of application to various shapes and types of joint bars, and further susceptible of modification as to the extent of its use upon the respective surfaces of the bar, but as herein disclosed in its preferred form, is enibodied with the major ortion of the nonbeariiig surfaces of the ar so as to obtain themaximum values therefrom, while preservingthe conventional portions of the bar unaltered so as to be fully and properly etfectiveqfoitheir desired purposes.

In Fig; 3 t-here is illustrated a suitably modified form of the improved splice bar wherein the outer face of the web portion is provided with upper and lower longitudinally extending shoulders 10, 11 having a. concaved or grooved portion therebetween. As shown, said shoulders 10 and 11 are spaced to be engaged by the washers 12 at the outer edges thereof whereby upon tightening of the usual securing nut 13 the washers are subjected to a distortion or deflection contributing to thesecuring value thereof.

Having described my invention, I claim:

1. A splice bar for railjoints having its. bearing portions of standard contour with plane surfaces and having non-bearing portions formed with a series of alternate, longitudinally extending rib and groove surfaces, substantially as described.

2. A splice bar for rail joints of uniform section having its bearing portions of standard contour with plane surfaces and having non-bearing portions formed with a series of alternate, longitudinally extending rib and groove surfaces, said ribs and grooves being 1 of curvilinear cross-sectional contour.

5. A splice bar for rail joints of uniform section having its bearing portions of standard contour with plane surfaces and having its major non-bearing surfaces of contiguous, longitudinally extending rib and groove formation. 7 l

head portion andupperflange portion having surface deformations providing a series of longitudinally extending ribs and grooves.

5. A splice bar for rail joints of uniform section having its fishing portiwis of stand ard'contour with plane surfao id bar being of angle type and formed with the outer head portion, vertical, inner web portion and upper flange portion having surface defor1nation providing a series of longitudinal y extending ribs and grooves. of substanial dimensions.

6. A splice bar for rail jointsof uniform section having its fishing portions of standard contour with plane surfaces, said bar being of angle type and formed with the outer head portion, inner web portion, upper flange portion and outermost lower flange portion provided with surface deformations providing longitudinally extending ribs and grooves, said ribs and grooves being of substantial dimensions having a curvilinear surface contour. V

7 A splice bar for rail joints of uniform section having its bearing portions of standard contour with plane surfaces and having its major non-bearing surfaces of contiguous, longitudinally extending rib andgroove formation, said ribs and grooves being of substantial dimensions and havinga curvilinear surface contour. J

8. A splice bar for rail joints of uniform section having its fishing surfaces. of standard contour, said bar being of angle type and formed with the inner web portion, upper flange portion and outermost lowerflange portion provided with surface deformations providing longitudinally extending grooves and ribs, said flange deformations being arranged whereby the ribs of'one surface are opposite the grooves of the other surface, substantially as described.

9. A splice bar for rail joints of uniform section having a vertical web portion having its outer surface formed -with upper V and lower shoulders longitudinally extending EMIL CARL ZIMMERMAN.

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